Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system

Detalhes bibliográficos
Autor(a) principal: Figueiredo, Raquel
Data de Publicação: 2019
Outros Autores: Nunes, Pedro, Meireles, Mónica, Madaleno, Mara, Brito, Miguel C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/37725
Resumo: The decarbonization of the Portuguese electricity system, currently around 50% renewable-based, is undergoing with the commitment to reach 60% of renewable electricity share by 2020. Because of this, the phase-out of the two remaining coal-fired power plants has been receiving close attention, as they currently contribute to about one-fifth of the total electricity generation and two-thirds of the CO2 emissions in the power sector. This work assesses the impact of eliminating coal-fired generation from the Portuguese electricity system without replacing it, and explores a cleaner supply alternative achievable before 2025. Coal phase-out without substitution results in slightly increased CO2 emissions for the atmosphere if one assumes that the required additional imports are of carbon-intensive electricity, leading to the need of adding clean power capacity to the system. It is shown that coal plants could be replaced by about 8 GW of photovoltaics if accompanied by a modest increase in the already existing hydro pump capacity. In this case, the renewable electricity share increases to 77%, and carbon footprint decreases by 56%
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spelling Replacing coal-fired power plants by photovoltaics in the Portuguese electricity systemCoal phase-outPhotovoltaicsEnergy storageElectricity systemsRenewable energyThe decarbonization of the Portuguese electricity system, currently around 50% renewable-based, is undergoing with the commitment to reach 60% of renewable electricity share by 2020. Because of this, the phase-out of the two remaining coal-fired power plants has been receiving close attention, as they currently contribute to about one-fifth of the total electricity generation and two-thirds of the CO2 emissions in the power sector. This work assesses the impact of eliminating coal-fired generation from the Portuguese electricity system without replacing it, and explores a cleaner supply alternative achievable before 2025. Coal phase-out without substitution results in slightly increased CO2 emissions for the atmosphere if one assumes that the required additional imports are of carbon-intensive electricity, leading to the need of adding clean power capacity to the system. It is shown that coal plants could be replaced by about 8 GW of photovoltaics if accompanied by a modest increase in the already existing hydro pump capacity. In this case, the renewable electricity share increases to 77%, and carbon footprint decreases by 56%Elsevier2023-05-15T13:41:23Z2019-06-10T00:00:00Z2019-06-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37725eng0959-652610.1016/j.jclepro.2019.02.217Figueiredo, RaquelNunes, PedroMeireles, MónicaMadaleno, MaraBrito, Miguel C.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:13:42Zoai:ria.ua.pt:10773/37725Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:08:19.755887Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
title Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
spellingShingle Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
Figueiredo, Raquel
Coal phase-out
Photovoltaics
Energy storage
Electricity systems
Renewable energy
title_short Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
title_full Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
title_fullStr Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
title_full_unstemmed Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
title_sort Replacing coal-fired power plants by photovoltaics in the Portuguese electricity system
author Figueiredo, Raquel
author_facet Figueiredo, Raquel
Nunes, Pedro
Meireles, Mónica
Madaleno, Mara
Brito, Miguel C.
author_role author
author2 Nunes, Pedro
Meireles, Mónica
Madaleno, Mara
Brito, Miguel C.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Figueiredo, Raquel
Nunes, Pedro
Meireles, Mónica
Madaleno, Mara
Brito, Miguel C.
dc.subject.por.fl_str_mv Coal phase-out
Photovoltaics
Energy storage
Electricity systems
Renewable energy
topic Coal phase-out
Photovoltaics
Energy storage
Electricity systems
Renewable energy
description The decarbonization of the Portuguese electricity system, currently around 50% renewable-based, is undergoing with the commitment to reach 60% of renewable electricity share by 2020. Because of this, the phase-out of the two remaining coal-fired power plants has been receiving close attention, as they currently contribute to about one-fifth of the total electricity generation and two-thirds of the CO2 emissions in the power sector. This work assesses the impact of eliminating coal-fired generation from the Portuguese electricity system without replacing it, and explores a cleaner supply alternative achievable before 2025. Coal phase-out without substitution results in slightly increased CO2 emissions for the atmosphere if one assumes that the required additional imports are of carbon-intensive electricity, leading to the need of adding clean power capacity to the system. It is shown that coal plants could be replaced by about 8 GW of photovoltaics if accompanied by a modest increase in the already existing hydro pump capacity. In this case, the renewable electricity share increases to 77%, and carbon footprint decreases by 56%
publishDate 2019
dc.date.none.fl_str_mv 2019-06-10T00:00:00Z
2019-06-10
2023-05-15T13:41:23Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/37725
url http://hdl.handle.net/10773/37725
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0959-6526
10.1016/j.jclepro.2019.02.217
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dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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